ABB SM811K01 (3BSE018173R1) — Safety CPU Module | AC800M HI Platform
Engineering Background
The SM811K01 is ABB’s dedicated Safety CPU for the AC800M High Integrity (HI) controller platform — a redundant, IEC 61508-certified safety system widely deployed in oil & gas, petrochemical, power generation, and critical infrastructure. It executes safety-instrumented functions (SIFs) independently of the standard process controller, ensuring that protective logic remains operational even under fault conditions in the base controller.
Product Positioning
Designed for procurement engineers sourcing certified safety hardware for SIS (Safety Instrumented System) projects, the SM811K01 provides a drop-in replacement or expansion module for existing AC800M HI racks. Konmask.com supplies this module from verified industrial channels with full traceability documentation available on request.
Complete Technical Specifications
| Part Number | SM811K01 |
| Catalog / Order Number | 3BSE018173R1 |
| Manufacturer | ABB (Asea Brown Boveri) |
| Platform | AC800M High Integrity (HI) |
| Module Type | Safety CPU / Safety Controller Module |
| Safety Integrity Level | SIL 3 (IEC 61508) |
| Architecture | 1oo2D (1-out-of-2 with Diagnostics) |
| Operating Voltage | 24 V DC (supplied via backplane) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | −40 °C to +70 °C |
| Humidity | 5–95 % RH, non-condensing |
| Communication Interface | ModuleBus (internal rack bus) |
| Backplane Connector | Standard AC800M HI backplane |
| Dimensions (H × W × D) | Approx. 233 × 35 × 230 mm |
| Weight | 2,060 g |
| Protection Class | IP20 |
| Certifications | IEC 61508 SIL 3, TÜV-certified |
| Firmware | Compatible with Control Builder M (CBM) safety project toolchain |
| Country of Origin | Sweden / Germany (ABB manufacturing) |
Proven Application Environments
- Oil & Gas: Emergency Shutdown (ESD) and High-Integrity Pressure Protection Systems (HIPPS) on upstream and midstream facilities
- Petrochemical & Refining: Burner Management Systems (BMS) and process safety interlocks
- Power Generation: Turbine protection and boiler safety logic in combined-cycle and thermal plants
- Offshore Platforms: Fire & Gas (F&G) detection integration with SIS logic solvers
- Chemical Processing: Reactor runaway prevention and safety-critical valve control
- Water & Wastewater: Overpressure and overflow protection in treatment facilities
Engineering Advantages
- SIL 3 Certified Architecture: 1oo2D voting logic with continuous self-diagnostics minimizes both spurious trips and dangerous undetected failures
- Seamless AC800M HI Integration: Shares rack, power, and communication infrastructure with standard AC800M controllers — reducing panel footprint and wiring complexity
- Independent Safety Execution: Safety CPU operates autonomously from the process CPU; a fault in the process controller does not compromise safety function execution
- Hot-Swap Capable: Supports module replacement under power in redundant configurations, enabling maintenance without process shutdown
- Deterministic Scan Time: Guaranteed worst-case response time for SIF execution, critical for fast-acting protective functions
- Integrated Diagnostics: On-board LED status indicators and diagnostic registers accessible via CBM for rapid fault isolation
- Long Product Lifecycle: ABB AC800M HI platform has an extended support commitment — minimizing obsolescence risk for long-lifecycle plant assets
System Architecture & Signal Flow
The SM811K01 resides in the AC800M HI controller rack alongside the standard PM8xx process CPU. Safety I/O modules (e.g., AI810, DI810 HI variants) connect via the ModuleBus backplane. The Safety CPU reads field sensor signals through certified safety I/O, executes the safety application program compiled in Control Builder M, and drives final elements (valves, relays) through safety-rated output modules. A dedicated safety network (e.g., PROFIBUS DP or Ethernet/IP with safety overlay) can be configured for distributed safety I/O architectures. The 1oo2D internal architecture continuously cross-checks both CPU channels; any discrepancy triggers a safe-state output within the configured reaction time.
Sourcing & Quality Verification
- Source: Procured from authorized industrial distributors and verified OEM-surplus channels — not grey-market or counterfeit sources
- Inspection: Each unit undergoes visual inspection, label verification (part number, revision, date code), and functional power-on check prior to dispatch
- Documentation: Certificate of conformity, test report, and original ABB packaging available on request
- Traceability: Batch and serial number records maintained for audit compliance
- Warranty: 12-month Konmask warranty covering manufacturing defects; DOA replacement within 7 business days
Procurement Process
- Inquiry: Submit your BOM or part number to support@konmask.com or via the product page enquiry form
- Quote: Receive a formal quotation with lead time, unit price, and shipping options within 1 business day
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for prepayment or net-terms accounts
- Inspection & Dispatch: Unit inspected, photographed, and securely packaged (anti-static, foam-lined) before shipment
- Shipping: DHL / FedEx express worldwide; tracking number provided within 24 hours of dispatch
- After-Sales: Technical support available for installation verification and commissioning questions
Technical FAQ
Q: Is the SM811K01 compatible with the standard AC800M (non-HI) rack?
A: No. The SM811K01 is designed exclusively for the AC800M High Integrity (HI) rack. It cannot be installed in standard AC800M racks due to different backplane pinout and firmware requirements.
Q: Can this module be used as a standalone safety controller?
A: The SM811K01 requires the AC800M HI rack and associated power supply modules. It is not a standalone DIN-rail device.
Q: What software is required to program the SM811K01?
A: ABB Control Builder M (CBM) with the Safety Application Builder extension. IEC 61131-3 function block and structured text programming are supported.
Q: Is a Factory Acceptance Test (FAT) report available?
A: Konmask can provide available test documentation. For project-specific FAT requirements, please contact us to discuss options.
Q: What is the typical lead time?
A: In-stock units ship within 2–3 business days. For bulk orders or specific revision requirements, lead time is quoted individually.
Q: Does Konmask offer technical support for integration?
A: Yes. Our engineering team can assist with rack configuration, firmware compatibility checks, and CBM project structure guidance.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
